Girl FriendObsessed: Used to describe a person who spends most of their time with their girlfriend and neglects their other friends. Also used to describe a person who spends all their time with their girlfriend and can't do anything independently.

Girlfriend Over Shoulder. Said to your fellas online to alert them that the topic of conversation suddenly warrants a window change and that you may bbl to finish said topic, or that the topic needs to change quickly while you make the window smaller.

Mike: yo that chick you were talking to at the bar was hot
Bill: hell yeah dudeMike: did you get her #?
Bill: shit, gfosMike: so
Mike: how
Mike: about
Mike: them
Mike: lakers
Mike: ?
Bill: nice1 brotha